Extinction risks and the conservation of Madagascar's reptiles
Autor: | Jeannot Rafanomezantsoa, Miguel Vences, Vineet Katariya, Nirhy H. C. Rabibisoa, Philip Bowles, Marcelo F. Tognelli, Harison Randrianasolo, Andriambolantsoa Rasolohery, Peter Paul van Dijk, Franco Andreone, Jean-Baptiste Ramanamanjato, Johans Ralambonirainy, Finoana Rollande, Ny A. Rakotondrazafy, Herilala Randriamahazo, Alain Andriamazava, Eric Robsomanitrandrasana, Neil A. Cox, Christopher J. Raxworthy, Lauren M. Chan, Jason L. Brown, Domoina Rakotomalala, Hiarinirina Randrianizahana, Mirana Anjeriniaina, Hery A. Rakotondravony, Richard K. B. Jenkins, Raphali Rodlis Andriantsimanarilafy, Richard A. Griffiths, Parfait Bora, Anne D. Yoder, Elisoa F. Hantalalaina, Jasmin E. Randrianirina, Michael R. Hoffmann, J. Christian Randrianantoandro, Craig Hilton-Taylor, Fanomezana M. Ratsoavina, Achille P. Raselimanana, Lee D. Brady, Frank Glaw |
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Jazyk: | angličtina |
Rok vydání: | 2014 |
Předmět: |
0106 biological sciences
Risk Conservation of Natural Resources Evolutionary Processes Ecological Metrics lcsh:Medicine Conservation-dependent species Biology Extinction Biological 010603 evolutionary biology 01 natural sciences Red List Index Madagascar IUCN Red List Animals 14. Life underwater lcsh:Science Species Extinction Conservation Science 2. Zero hunger Evolutionary Biology Spatial Analysis Multidisciplinary Near-threatened species Ecology 010604 marine biology & hydrobiology Ecology and Environmental Sciences Endangered Species lcsh:R Least concern Biology and Life Sciences Reptiles Biodiversity 15. Life on land Reptile Biology Biogeography 13. Climate action Extinction Risk Threatened species lcsh:Q Conservation biology Zoology Threatened fauna of Australia Research Article |
Zdroj: | PLoS ONE, Vol 9, Iss 8, p e100173 (2014) PLoS ONE |
ISSN: | 1932-6203 |
Popis: | Background An understanding of the conservation status of Madagascar's endemic reptile species is needed to underpin conservation planning and priority setting in this global biodiversity hotspot, and to complement existing information on the island's mammals, birds and amphibians. We report here on the first systematic assessment of the extinction risk of endemic and native non-marine Malagasy snakes, lizards, turtles and tortoises. Methodology/Principal Findings Species range maps from The IUCN Red List of Threatened Species were analysed to determine patterns in the distribution of threatened reptile species. These data, in addition to information on threats, were used to identify priority areas and actions for conservation. Thirty-nine percent of the data-sufficient Malagasy reptiles in our analyses are threatened with extinction. Areas in the north, west and south-east were identified as having more threatened species than expected and are therefore conservation priorities. Habitat degradation caused by wood harvesting and non-timber crops was the most pervasive threat. The direct removal of reptiles for international trade and human consumption threatened relatively few species, but were the primary threats for tortoises. Nine threatened reptile species are endemic to recently created protected areas. Conclusions/Significance With a few alarming exceptions, the threatened endemic reptiles of Madagascar occur within the national network of protected areas, including some taxa that are only found in new protected areas. Threats to these species, however, operate inside and outside protected area boundaries. This analysis has identified priority sites for reptile conservation and completes the conservation assessment of terrestrial vertebrates in Madagascar which will facilitate conservation planning, monitoring and wise-decision making. In sharp contrast with the amphibians, there is significant reptile diversity and regional endemism in the southern and western regions of Madagascar and this study highlights the importance of these arid regions to conserving the island's biodiversity. |
Databáze: | OpenAIRE |
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